00:01
Okay, so we've got an rlc series circuit, rlc series, and we're given that we're looking for the resonance frequency.
00:17
Resonance frequency, and which are the following are true.
00:25
We've got five different choices here, a, b, c, d, and e.
00:30
So just a quick background on this.
00:32
At resonance frequency, we know that inductive reactants is equal to capacitive reactants.
00:40
So inductive reactants is equal to capacitive reactants.
00:46
We know that impedance is given as square root of r squared plus xl minus xc squared.
01:00
Okay.
01:01
And since we know that xl is equal to xc, that means z is equal to square root of r squared, and z is equal to r.
01:12
Okay, so what that tells us then is that impotence is minimum, and i is equal to v over z...